Access control logic for video terminal display memory

Details Access control logic for video terminal display memory Access control logic for video terminal display memory

1981-02-19

1984-07-24

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340723, G09G 106

Patent

active

044620284

ABSTRACT:
A logical control system is provided for accommodating both single and double byte accesses to a video terminal system display memory to supply video character and visual attribute data to a video screen without limiting the quantity of visual attributes and without the needless occupation of video screen character positions by visual attribute characters.

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patent: 4368461 (1983-01-01), Komatsu et al.

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